Fidas24 - Response Factors And Other Relevant Variables - ABB EasyLine EL3000 Operating Instruction

138 EL3000 CONTINUOUS GAS ANALYZERS | OI/EL3000-EN REV. D
... 9 Calibration
Fidas24 – Response factors and other relevant variables
Response factors
Definition
or
The response factor of Propane (C
accordance with the definition.
Response factors for Fidas24 analyzer module
sample component
Toluol C H
7 8
Chlorobenzene C H Cl
6 5
p-Xylol C H
8 10
Benzol C H
6 6
Ethylbenzene C H
8 10
Propane C H
3 8
n-Hexane C H
6 14
n-Octane C H
8 18
iso-Octane C H
8 18
Trichloroethylene C HCl
2 3
Tetrachloroethylene C Cl
2 4
Ethane C H
2 6
Butane C H
4 10
Methanol CH OH
3
Butanol C H OH
4 9
Acetic acid C H O
2 4 2
Dichloromethane CH Cl
2 3
Methane CH
4
* Measurement of the components in synthetic air
Note
The response factors for an individual analyzer module may
differ slightly from the values indicated in the table.
H ) is equal to 1.00 in
3 8
Response factor*
Response factors for additional sample components
If a measuring component is added with a response factor which
was not factory-set, we recommend determining this as follows:
The following information should therefore be noted in
particular:
• The zero point should not differ essentially from the
calibrated zero point, in particular when measuring with
small concentrations. Otherwise the display must be
offset against the deviation from the calibration of the
zero point with the measured value display.
0.95
• The response factors of a gas in nitrogen and in synthetic
0.95
air may differ considerably from each other.
0.92
• The measurements should always be performed with a
0.99
sample component and a measuring range, for example
0.92
THC in ppm C1. When calculating the test gas
1.00
concentration, the number of C-atoms must be
0.97
considered.
0.93
• Test gas cylinders with high accuracy (1 % and better)
1.04
should be used.
0.96
1.00
Other relevant variables
1.01
The following variables must be stored in the software of the
0.97
gas analyzer for each measuring component:
0.74
Molar mass, number of C-atoms, response factor and strip
0.83
factor (K factor)
0.52
1.00
These variables are stored for the standard sample components;
1.13
they must be entered when adding a user component.
Molar mass
M = 12.011 g/mol
C
M = 1.008 g/mol
H
Molar volumes
V = 22.414 l/mol for 0 °C and 1013 hPa
m
V = 24.05 l/mol for 20 °C and 1013 hPa
m